The Fenix BC45R is a purpose-built mountain biking light designed for riders who push into technical terrain after dark. Its dual-beam system delivers a maximum output of 3,300 lumens with a beam distance of 938 feet, and the integrated high and low beams can be activated together or independently, giving riders precise control over light distribution whether they're sprinting open trail or picking through tight switchbacks. The included wireless remote switch mounts within easy thumb reach so you can adjust output on the fly without taking your hands off the bars, while the OLED display keeps battery level and mode status visible at a glance.
Built to handle whatever the trail throws at it, the BC45R runs on two included 3,400mAh rechargeable 18650 batteries for up to 59 hours of runtime, and recharges quickly via USB-C with a waterproofing-treated internal charge port. The A6061-T6 aluminum body is drop-tested to 1.5 meters and IP66-rated against water and dust, so the light performs through mud, rain, and rough landings. A shock-proof, quick-release mount fits handlebars from 28 to 35mm for a secure, tool-free setup, and a flashing safety mode adds visibility during dawn, dusk, or road transitions.
